Front-side reading = Front-side scanning | Fujitsu fi-4990C instruction

Front-side reading = Front-side scanning

Refers to reading the front-side of the document, specifically in Duplex reading mode.

Halftone processing

Used to reproduce photographs which usually contain different shades to display images. These shades are composed of dots resulting in a binary image. Dithering and error diffusion processing are examples of the halftone processing.

Hexadecimal

A base-16 numbering system (also commonly referred to as hex numbers). Since a base-16 system requires 16 digits, numbers 0 through 9 and letters A through F are used. It is convenient to express binary numbers in hexadecimal because fewer digits are required.

Image emphasis

Density is decreased for lighter but not completely white areas adjacent to black areas. Weakening this emphasis eliminates spot noise or produces softened images.

Image processing

An image is read with specified parameters.

Initial screen

A screen displayed when the power is turned on or when reading is activated by the command from the host computer.

Interface

The connection that allows communication from one part of a system to another. For example, electrical signals are transferred between the computer and scanner over an interface cable.

Inversion (Reverse-image reading)

In reverse-image reading, data is changed from black to white and vice versa.

IPC-3 mode

While reading binary images, it is necessary to set the scanner according to the quality of the sheet to be read. In this mode these settings can be performed in advance by corresponding each setting to a pattern number.

GL-3

Image 111

Fujitsu fi-4990C Front-side reading = Front-side scanning, Halftone processing, Hexadecimal, Image emphasis, Interface

Contents

Fi-4990C Image Scanner Fi-4990C Image Scanner Page Fujitsu Limited Japan Important Note to Users Preface TIONS, Operating INSTRUCTION, Document Specification Conventions Contents Components Components Checking the Components Units Units and Assemblies Name Function Assemblies Arrangement Operator Panel LCD Display Button/LED Function Operation status display Sound condition Function Buzzer Installation and Connections Achtung Precautions Inspection Label C An example Turning the main line switch off Connecting the power cableCable Connection Connecting the interface cable Attach the stop lever to the scanner Operating Instruction Turning the Power On Basic Operation of the Operator Panel Displaying detailed information if an error occurred Lifting or lowering the hopper Aaaaaaaa Mmmm Clearing a consumable life alarm Value Meaning Description Confirming the number of sheets processed by the scanner Using the function buttons F1, F2, and F3 Using the setup, browse, and test modes Turn off to quit Mode Select Blinking Occurred Transition of operator panel status and displayPage Documentspecification Scanner Maximum Minimum Fi-4990C Document Size Ream weight of paper Document QualityPaper types of documents Precautions Page Areas that must not be perforated Document Limitations Shows the document as viewed from the reading surface Print phohibit areas on the front and back surfaces Grounding color area Grounding Color Area Drop-out Color Print density measurementDrop-out color standards Job Separation Sheet ShapeDocument type Specifications Specification Installation Specifications External Dimensions Consumables Name Specification Service life and remarks Options SETUP, BROWSE, and Test Modes Setup, Browse, and Test Modes Functions not available in setup modeFunctions not available in browse mode Activating the Setup or Browse Mode Button functions in setup or browse modeReady Mode selection Menu pressed in Ready status Contents of the Setup or Browse Mode Scsi ID Setup mode menu screen Transition of screens in setup mode Paper length check Paper Length Check10 mm Doublefeed check Setup Mode Paper Length Check ReadySetup Mode Paper Length Check Setup Mode Doublefeed Check Doublefeed Check Mode Doublefeed Check Mode Thickness & RollerDoublefeed Check Paper thickness setup Paper Thickness Setup Ready Paper Thickness Setup Adjusting Finished Skew check Skew Check Check OFF Check onSkew Check Ready IPC-3 Mode IPC-3 mode Paper types and corresponding pattern numbers Reading parameter validity Hopper Height Sheets Hopper height Paper separation level Paper Separation Level Normal Medium Thin Set braking power according to the table below Paper Separation Level Ready Drop-out Color Front Green Back Green Front Green Back Red Drop-out color Background changeover Drop-out Color ReadyBackground Changeover White B White Consumable counter Background Changeover White B White White B BlackBackground Changeover Ready Setup Mode Consumable Counter Reset Reest Counter Value 00250000 Consumable counter reset Consumable alarm mode Finished resettingConsumable Counter Reset Consumable Alarm Mode Buzzer BuzzerBuzzer Ready Buzzer Volume Min n n q q q q Max Min n n n q q q Max Buzzer volume Buzzer Volume Ready LCD contrastLCD Contrast Dark n n q q q q Bright Picking speed LCD Contrast Dark n n n q q q BrightLCD Contrast Ready Tpif baud rate Picking Speed Fast SlowPicking Speed Ready Tpif Baud Rate 9600 Tpif Baud Rate 19200Tpif Baud Rate Scsi ID Product ID Product IDProduct ID Fi-4990C Product ID M3099G Pre-pick Pre-pickPre-pick Ready Pick start time Pick start time 01.0 S 05.0 SPick start time Ready Manual Feed Timeout 10 S Setup Mode Manual Feed Timeout Manual feed timeout Paper Pick retry Step Times Paper pick retry Paper Feed retry Paper feed retryPaper Pick retry Times Paper Pick retry Ready Paper Feed retry Times Step Function key Start Function Key F1 F2 F3 F1 selection Undefined Start key Function Key F1 F2 F3 F2 selection Undefined Eject key Setup mode lock Setup Mode Lock Language Language EnglishLanguage Ready Setup Mode White follower mode White follower mode Interface board slot Paper Length Check Setup Mode Interface Board Slot Interface Board Slot Scsi bus width setting Scsi Bus Width setting Scsi Bus Width Setting 16 bit Bit Please wait Activating the Test ModeButton functions in test mode Test Mode Offline Feed Test Mode selection power on with Menu pressed Contents of the Test Mode 200 Offline feed test Feeding 123456781234 200 LA Options Endorser BG. Change Options 12345678 Device lifeDevice Life Lamp FPage Automatic separation Automatic start mode manual start modeBrowse mode A4 size Dither Duplex reading modeEquipment Error Error diffusion Image emphasis Front-side reading = Front-side scanningHalftone processing Hexadecimal Letter size Linedrawing modeManual Feed mode = Manual Mode Landscape Picking time Paper Jam Photograph mode White level follower OFFPhoto mode = photograph mode Picking start time Temporary Error Setup modeSimplex reading mode Start command time-out Index LED Page Page Page This manual uses recycled paper